［正］in the room ［誤］at the room

・"room"に対する場所を示す前置詞は"in"を使う。
・"at"を使うのは、立ち寄った一点としてイメージされる場合に限られる。

［正］ Mary is writing the diary in her room.
［誤］ Mary is writing the diary at her room.
［正］ She is in the living room.
［誤］ She is at the living room.

［正］ On her way to the gym, she stopped at Professor Jones' room.

［正］in the room ［誤］at the roomの関連項目

• ⇒ in, on, atの使い分け
• ⇒ at school vs. in school
• ⇒ 時を表す前置詞
• ⇒ 場所を表す前置詞
• ⇒ He studied physics at the university.
• ⇒ Karen looked out the window.
• ⇒ We were sitting around the campfire.
• ⇒ the January before last
• ⇒ I never work on the weekend.
• ⇒ We met the spring of 2011.
• ⇒ around the world vs. all around the world
• ⇒ ［誤］He'll be here tomorrow from about seven o'clock.
• ⇒ "on TV"と"on the TV"の違い
• ⇒ stay at the hotel ／ stay in the hotel